Sunflowers are ready to harvest when their foliage turns yellow, the petals die down and the seeds look plump.
Accordingly, when should you cut sunflowers?
Harvest of annual sunflowers does not begin until the petals wilt and begin to fall. You can prevent seed loss to birds, squirrels and deer by covering the blossoms with paper bags at that point. After the seed shells fatten up but before they dry out, cut the sunflower stalks about 12 to 18 inches below the flower.
Additionally, will sunflower seeds ripen off the plant?
Let seeds dry out before storing. Another method is to harvest the head when outer seeds are mature and the inner seeds begin to ripen. Cut off the stalk about 4 inches below the head, and hang upside down in a warm area covered in a paper sack until seeds mature.
How do you harvest sunflowers?
Harvesting Sunflower Seeds
- Let the flower dry on or off the stem until the back of the head turns brown, the foliage turns yellow, the petals die down, and the seeds look plump and somewhat loose.
- With sharp scissors or pruners, cut the head off the plant (about 6 inches below the flower head).
Should I cut the heads off my sunflowers?
As a general rule, deadhead flowers when they start to fade, or when they are damaged and no longer attractive, but do so before they produce seeds. When a sunflower's flower head stops looking as vibrant as it once did or when its yellow ray petals have fallen off, select it for deadheading.